diff --git a/HISTORY.md b/HISTORY.md
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--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,18 @@
 T2WML Standalone Server App History
 ===================================
 
+Changes in version 2.9.1:
+-------------------------
+* t2wml-api 0.3.3
+* various performance improvements
+   - no more database for properties
+   - bug with multiple calls to layers/partialcsv resolved
+   - no overloading suggest api
+* display unused properties/units/main subject as striped. when clicking any block, highlight linked blocks as well
+* change suggestion api-- select suggestion as default option but show all options in dropdown
+* limit partial csv result preview to 150 rows
+
+
 Changes in version 2.9.1:
 -------------------------
 * t2wml-api 0.3.2